帮忙看一下这两个warning有没有影响
WARNING:Cpld:310 - Cannot apply TIMESPEC TS1000 = PERIOD：PERIOD_sysq<12>.Q:0.000 nS because of one of the following: (a) a signal name was not found; (b) a signal was removed or renamed due to optimization; (c) there is no path between the FROM node and TO node in the TIMESPEC.WARNING:Cpld:310 - Cannot apply TIMESPEC TS1018 = PERIOD：PERIOD_iow:0.000 nS because of one of the following: (a) a signal name was not found; (b) a signal was removed or renamed due to optimization; (c) there is no path between the FROM node and TO node in the TIMESPEC.
这是用ISE 11.1Fit之后出现的警告，不知道是不是说我的布局有问题，或者说没有影响？ 这两个warning没有影响，应该是ISE在优化的时候将没有用的信号去掉了，只要符合你的设计目标就可以了 这两个warning没有影响，应该是ISE在优化的时候将没有用的信号去掉了，只要符合你的设计目标就可以了
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